Guarantor Financial Information - Additional Information (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2016 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Guarantor Subsidiaries | |||
| Condensed Income Statements Captions [Line Items] | |||
| Percentage of ownership in directly owned subsidiaries | 100.00% | ||
| 8.25% Senior Notes Due October 15, 2024 | |||
| Condensed Income Statements Captions [Line Items] | |||
| Senior notes | $ 300.0 | $ 300.0 | $ 0.0 |
| Interest rate, stated percentage | 8.25% | 8.25% | |
| Maturity date | Oct. 15, 2024 | Oct. 15, 2024 |